I really appreciate the Archive team's efforts to make the Wayback Machine more responsive, and have donated a few times to support them. Unfortunately, the restrictions have been way too strict for the last few months: from my residential IP, simply moving the mouse on the calendar for a specific URL is enough to get stuck on 429 error messages for a while; and from corporate ISPs (for example, on airport WiFi), you…
Sadly I see rate-limiting usage in general becoming a thing. With residential proxies and more sophisticated bots either pretending to be Chrome or directly piloting Chrome, it's going to become impossible to tell a real user from a bot. Only solution is to pretend that everyone is a bot and design for it.